Folder for sewing-machines.



L. ONDE'RDONK.

FOLDER FOR SEWING MACHINES.

APPLICATION FILED 5ULY14.1910.

LEEARQQ wi/tmeooeo Tm: coumuam PLANoun wn C0,, WASHINGTON, D. c.

L. ()IlDEHDONK- FOLDER FOR SEWING MACHINES.

APPLICATION FILED JULY 14; 1910. LlQAlW 1 Patented Apr. 25, 1916.

2 SHEETS-SHEET 2.

A THE COLUMBIA PLAKIOGRAPH co, WASHINGTON, b. c,

LANSING ONDIERDONILDF NEW YORK, N. Y.. ASSIGNOR T0 UNION SPECIAL MACHINE COMPANY, OFCI-IICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

FOLDER FOR SEWING-MACHINES.

Specification of Letters Patent.

Patented Apr. 25, 1915.

Application filed July 14, 1910. Serial No. 571,976.

To all whom it may concern Be it known that I, LANSING ONDnnDoNK,

State of New York, have invented certain new and useful Improvements in Folders for Sewing-Machines, of which the following is a description, reference being had to the accompanying drawing and to the letters and figures of reference marked thereon.

The invention relates to new and useful improvements in folders for sewing machines, and more especially folders which are adapted to fold a strip of fabric and invert the same as it is led to the stitching mechanism.

Anobject of the invention is to provide a folder which is especially adapted for folding extremely wide strips of fabric and for guiding the same evenly and smoothly to the stitching mechanism.

The invention consists in the parts, arrangements and improvements hereinafter described and set forth in the appended claims.

In the drawings,-Figure 1 is a plan view of a portion of a sewing machine with my improved folder attached thereto; Fig. 2 is a front view of the folder showing the fabric therein; Fig. 3 is a similar view with the fabric removed; Fig. 1 is a view of the delivery end of the folder; Fig. 5 is a view of the receiving end of the folder; Fig. 6 is a rear view of the folder, showing in dotted lines the edge guide adjusted; Fig. 7 is a horizontal sectional view showing the guide in adjusted position.

In Fig. 1 of the drawings I have shown a portion of the sewing machine which consists of a work support 1, presser foot 2, needles 3, 3, and an upper feeding mechanism 4. These parts are of the usual construction.

My improved folder 5 consists of two.

U-shaped guiding walls 6 and 7, one of which is located within the other and the outer ends of said walls are joined as at 8 and 9. This forms a closed U-shaped passage, through which the strip of fabric being folded is adapted to-pass.

At its delivery end, the folder, as clearly shown in Figs. 1 and 7, is cut at an acute angle to the longitudinal axis of the folder, as indicated at 10. This folder is of the usual type, as above described, and is adapt-' ed to be attached to the work support by a shank 11, which is provided with slots 12 receiving screws 13. The shank 11, as clearly shown in Fig. 5, is rigidly attached to a cross brace 14: fastened to the inner guiding walls. I

An opening 15 is formed in the outer guiding wall, as shown in Figs. 2 and 3, so as to facilitate the insertion of the fabric into the folder. The folder is attached to the sewing machine so that its longitudinal axis is substantially at right angles to the line of feed, and the strip of material passing through the folder is inverted in a well known manner and led in a direction from the folder substantially at right angles to its longitudinal axis.

Guiding fingers 16, 16, are secured at the outer ends ofthe U-shaped passage of the folder, and form a guiding surface over which the edge of the fabric turns as it is inverted.

As above noted, my improved folder is especially adapted for folding and directing extremely wide strips of fabric. In order to guide and direct the fold in the strip of fabric, I have provided a guide 17 which,

as clearly shown in Fig. 6, is also U-shaped in construction. This guide 17 is rigidly attached to a U-shaped shank 18 (see Figs. 5 and 7), which U-shaped shank rests against the inner face of the U-shaped mem ber 17. A spring 19 carried by the bracket 1 1 bears against the shank 18, and holds it firmly in contact with the inner guiding wall 7. In order to hold the guide 17 in its adjusted position, I have provided a rod 20, which is rigidly attached to the guide 17, see Fig. 6. Said rod is slotted at 21, and a screw 22 passing through the slot is threaded into the bracket 14; and serves to tact with ?the inner guiding wall.

, longitudinal axis hold the guide 17 in adjusted position. On the outer end of the rod 20 is a cross bar 23, which passes through a collar 24 formed in the rod 20, and is securedthereinby a set screw 25. s

The fabric is led from the supply-over the-cross bar 23, as shown in Fig. 1, and thence to the U-shaped passage of the folder. After passing through the folder the fabric is led in a direction at right anglestthereto, the edges of the fabric being guided by the fingers 1'6 and the ifolded portion "of the fabric being directed by the guide 17. When it is desired to fold a narrower "strip of fabric, the set screw 22 is released, and the guide 17 adjusted, as s'hownin dotted lines in Figs. 6 and'7. TheU-shapedsharik portion'18 will form anex'tension of the inner guiding'wa'll, and support *thefabrio until it is inverted .and led to 'the stitehing meehanism. Y

@Having thus described my invention, what I claim as;new and desireto secure by Letters Patent, is

1. A .fdlder comprising-spaced U shaped guiding walls havingth'edelivery end thereof arranged at an acute angle to the longitudinal axis of the folder, a U-shapedguide mounted on said folder and extending in a direction substantially at right angles to the longitudinal axis of the folder, said guide being :located at the deliveryend of the folder'for guiding the fold in said strip, means "for adjusting said guide longitudinally of the'folder, said 'guide'having a U-shaped shank conforming in curvature tothe inner guiding wall, whereby whensaid guideis adjusted, said shank 'forms an extension of the inner guidingwa'll, and a spring for holding 'saidishank in close con- 2. The combination of stitch-forming mechanism including a needle,-a folder-comprising spaced U-shaped guiding walls, means for supporting said folder with its substantially at right angles to the direction of stitching, the delivery end of said 'folderbeing arranged at an acute angle to the longitudinal axis of the folder, whereby the stripguided by the folder maybe inverted, a ,guide carried by said folder for directing the folded portion of the strip, .saidjguide'being curved to conform to the foldin the strip and extending to a point substantially in a line at right angles to the line of feed and containing the prising spaced UTshaped means for supporting said needle,:and means "for adjusting said guide n a direction longitudinal of the folder.

The comblnation of stitch-forming mechanism including a n'eedle,.-a folder .com-

guiding walls, .folder with its,

longtiudinal axis substantially at right said folder for tion of the strip, sald ,point substantially in said :guide having a ing a curvature wlth angles to the direction of stitching, the delivery end of said folder being arranged at an acute angle to the longitudinal axis of the folder, whereby the strip guided by the foldenmay be inverted, a guide carried by directing the folded porguide extending to a a line at right angles containing the needle, U-shaped shank formthe inner guiding wall, whereby when said guide is adjusted, said curved shank forms an extension of the inner wall.

4. The combination of stitch-forming mechanism including a needle, a folder comprising spaced U-shaped guiding walls, means for supporting said folder with its longitudinal axis substantially at right angles to the direction of stitching, the delivery end ofsaid folder being arranged at an acute angle to the longitudinal axis of the folder, whereby the strip guided by the folder may be inverted, a guide carried by said folder for directing the folded portion of the strip, said guide-extending to a point substantially in a line at right angles to the line of feed and containing the needle, said guide'having aU-shaped shank forming a curvature with the inner guiding wall, whereby when said guide is adjusted, said curved shank forms an extension of the inner wall, a'bar attached to said guide, and means forsecuring said bar in adjusted position.

'5. A "folder for sewing machines including in combination, spaced'U-shaped guiding walls, a bracket secured to the inner wall, a shank secured to said bracket, means for adjustably attaching said shank to the bed plate of the machine, whereby said'U-shaped guiding walls extend above and below said bed plate, the delivery end of said folder being arranged at an acute angle to the longitudinal axis, whereby a strip led through said folder may be inverted.

6. A folder for sewing machines including in combination, spaced U-shaped guiding walls, a bracket secured to the inner wall, a shank secured to said bracket, means for adjustably attaching said shank to the bed plate of the-machine, whereby said U-shaped guiding walls extend above and below said bed plate, the delivery end of said folder being arranged at an acute angle to the longitudinal axis, whereby a strip led through said folder may be inverted, an adjustable guide carried by the folder for guiding the folded-portion of the strip after it is inverted.

7. The combination of a U-shaped folder having itsdelivery end arranged at an acute angle tothe longitudinal axis thereof, a rod adjustably attached to the folder, and a to the line of feed and meoeie cross bar carried by said rod and extending in a vertical direction for guiding the strip to the folder.

8. The combination of a U-shaped folder having its delivery end arranged at an acute angle to the longitudinal axis thereof, a rod adjustably attached to the folder, and a cross bar carried by said rod and extending in a vertical direction for guiding the strip in presence of two witnesses.

LANSING UNDERDONK. Witnesses:

J. H. HOWELL, A. S. OSWALD.

homes of thin patent may be obtained for five cents each, by addressing the "Commieefloner 0t Eat/enter,

. Weehilnmten, n. e. 

